David Bolton Why Plastic Access Doors Outperform Steel in Wet and Moisture-Prone Interior Spaces The Problem with Steel Access Doors Behind Wet Walls This article is for facility managers, commercial contractors, and specifiers who need reliable access panel solutions in spaces where moisture is ... access doors commercial interiors facility maintenance moisture-resistant hardware plastic panels Oct 6, 2026 Our Blog
David Bolton Where to Mount a REX Sensor So It Actually Works: Height, Angle, and Coverage Decisions at the Door The Sensor Is Installed. The Door Still Does Not Release. Sound Familiar? Request-to-exit (REX) sensors are a small but critical component of every electrified door opening. Mount one two inches too h... PIR-sensor access-control door-hardware-installation electrified-hardware request-to-exit Oct 5, 2026 Our Blog
David Bolton UL 752 Bullet-Resistant Door Levels Explained: How to Match the Opening to the Threat What This Article Covers This guide explains the UL 752 standard for bullet-resistant doors and frames, breaks down what each protection level means in plain language, and helps architects, security c... UL 752 ballistic door assemblies bullet-resistant doors commercial door security specialty doors Oct 4, 2026 Our Blog
David Bolton Fail Safe Electrified Mortise Locks with Both Levers Locked: When the Opening Demands Full Bilateral Control The Opening That Has to Stay Controlled in Both Directions This article explains a specific and often misunderstood configuration of electrified mortise locksets: the fail safe function where both the... access control electrified mortise locks fail safe hardware healthcare door hardware life safety compliance Oct 4, 2026 Our Blog
David Bolton Why Steel Doors Fail in Chemical Exposure Areas — and What FRP Doors Do Differently The Problem With Steel in Corrosive Environments In most commercial buildings, hollow metal doors are the right call. They are durable, fire-ratable, and well-understood by every contractor and facili... Chemical Exposure Commercial Door Specification Corrosion Resistant Hardware FRP Doors Industrial Facilities Oct 3, 2026 Our Blog
David Bolton The Gasket Gap That Kills Your STC Rating: Acoustic Sealing for Sound-Rated Door Assemblies Why the Door Rating Means Nothing Without the Right Gasket This article explains how acoustic door gasketing works, why it controls the real-world Sound Transmission Class (STC) performance of an oper... STC-rated assemblies acoustic gasketing automatic door bottoms door sound seals perimeter seals Oct 3, 2026 Our Blog
David Bolton Three Mortise Lock Functions, One Door Type: How to Pick the Right One for Apartment, Exit, and Public Toilet Openings Same Door, Wrong Function: A Costly Mistake on Multi-Use Buildings This post is for contractors, facility managers, and specifiers who work on buildings where a single door opening could serve more th... Grade 1 security code compliance commercial door hardware lock functions mortise locks Oct 3, 2026 Our Blog
David Bolton The Frame Is Fine, the Door Is Not: How Half Surface Hinges Solve Retrofit Hinge Problems Without Touching the Frame Prep When the Opening Has Already Been Built, but the Hardware Has Not This article is for contractors, maintenance technicians, and facility managers who are replacing doors on existing frames and cannot ... commercial door hardware fire door hardware half surface hinges hinges retrofit hardware Oct 2, 2026 Our Blog
David Bolton No Grasping, No Pinching, No Twisting: How to Specify ADA-Compliant Door Hardware Operability Across Every Opening Type What the No-Grasp Rule Actually Means at the Door Opening This article helps contractors, facility managers, and architects understand the ADA operability requirement for door hardware -- the rule tha... ADA Compliance Accessible Hardware Code and Compliance Door Hardware Operability Lever Hardware Oct 2, 2026 Our Blog
David Bolton 2010 ADA Standards for Doors: What Every Hardware Specifier Needs to Know at the Opening Level Who This Guide Is For and What It Covers If you are specifying or installing commercial door hardware on any project that serves the public, the 2010 ADA Standards for Accessible Design govern how tha... ADA Compliance Accessible Design Code and Compliance Commercial Doors Door Hardware Oct 1, 2026 Our Blog
David Bolton When a Roller Latch or Ball Catch Is Not Enough: Choosing the Right Holding Hardware for the Opening What This Guide Covers and Who It Helps Roller latches and ball catches are among the most common door-holding devices in commercial and institutional buildings. They are inexpensive, easy to install,... ball catch commercial door hardware door holding hardware latch replacement roller latch Oct 1, 2026 Our Blog
David Bolton What Section 087100 Actually Requires: A Practical Guide to Writing Door Hardware Specs That Hold Up Who This Helps and What It Covers If you are an architect, hardware consultant, or commercial contractor trying to write or review a door hardware specification, Section 087100 is where the real decis... CSI MasterFormat DHI Section 087100 door hardware specification writing Sep 30, 2026 Our Blog